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HowShorted

MSFO short interest NYSE Arca

YieldMax MSFT Option Income St. FINRA's reported shares short for this symbol, twice a month by settlement date, shown as the regulator publishes them. No percentage is shown: exchange-traded product: its share count floats with creation and redemption.

Shares short
38,620
vs previous settlement
−2,156 (-5.3%)
days to cover
1.00
Settlement date
15 Sep 2026

Shares short over time

Aggregate net short position time series for MSFO shares short

Days to cover

FINRA's own figure: reported shares short divided by the security's average daily trading volume, published alongside each settlement.

Aggregate net short position time series for MSFO days to cover

Fails to deliver

The SEC's fails-to-deliver figure for MSFO: the aggregate net balance of shares that failed to be delivered at each settlement date, published by the SEC twice a month and shown here verbatim for the trailing window. A balance is not a daily flow, and a fail has many ordinary causes; the SEC says it cannot guarantee the accuracy of the data. See what fails to deliver are and the largest balances today.

Last balance on file
27,913
8 Sep 2026
Highest in window
77,868
18 Mar 2026
Days with a balance
122
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for YieldMax MSFT Option Income St fails to deliver

Source: U.S. Securities and Exchange Commission, fails-to-deliver data (public domain). Only settlement days with a positive balance appear; the largest balance in the window was 78K shares.

History

Every FINRA settlement we hold for MSFO, newest first.

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 202638,620−2,1561.00
31 Aug 202640,776−106,3301.00
14 Aug 2026147,106+74,7141.10
31 Jul 202672,392−10,0411.00
15 Jul 202682,433−89,2221.24
30 Jun 2026171,655+37,4661.73
15 Jun 2026134,189+17,8701.57
29 May 2026116,319+13,6641.27
15 May 2026102,655+53,9531.00
30 Apr 202648,702−101,5401.00
15 Apr 2026150,242+8,6961.57
31 Mar 2026141,546−25,9171.00
13 Mar 2026167,463−39,3962.16
27 Feb 2026206,859+21,9471.00
13 Feb 2026184,912+64,7111.54
30 Jan 2026120,201−6,4721.00
15 Jan 2026126,673+68,2571.37
31 Dec 202558,416−87,2961.00
15 Dec 2025145,712+36,1042.01
28 Nov 2025109,608+65,9391.00
14 Nov 202543,669−5,4341.00
31 Oct 202549,103−41,0751.00
15 Oct 202590,178−13,8441.46
30 Sep 2025104,022+49,2721.00
15 Sep 202554,750−4,7231.00
29 Aug 202559,473+2501.00
15 Aug 202559,223−93,3801.00
31 Jul 2025152,603+1,0001.42
15 Jul 2025151,603+64,9393.33
30 Jun 202586,664−49,1521.00
13 Jun 2025135,816−15,2473.22
30 May 2025151,063+71,3152.61
15 May 202579,748−1,8521.39
30 Apr 202581,600+11,7261.11
15 Apr 202569,874+38,4311.27
31 Mar 202531,443+20,0791.00
14 Mar 202511,364−133,8851.00
28 Feb 2025145,249+79,6212.72
14 Feb 202565,628−101,6671.28
31 Jan 2025167,295+113,7411.96
15 Jan 202553,554−31,1271.00
31 Dec 202484,681−111,7161.37
13 Dec 2024196,397+64,5602.69
29 Nov 2024131,837−93,0081.96
15 Nov 2024224,845+24,7312.98
31 Oct 2024200,114+85,7822.74
15 Oct 2024114,332+59,5482.91
30 Sep 202454,784+46,8831.23
13 Sep 20247,901+1,6131.00
30 Aug 20246,288−1,7731.00
15 Aug 20248,061−28,6061.00
31 Jul 202436,667−9,8601.00
15 Jul 202446,527−3,0341.00
28 Jun 202449,561+5,6781.00
14 Jun 202443,883−120,5171.00
31 May 2024164,400+88,8392.50
15 May 202475,561+10,7921.31
30 Apr 202464,769+31,0581.00
15 Apr 202433,711+24,0361.00
28 Mar 20249,675−5,8841.00
15 Mar 202415,559+12,3201.00
29 Feb 20243,239−5391.00
15 Feb 20243,778−12,7771.00
31 Jan 202416,555+15,5861.00
12 Jan 2024969−1,6381.00
29 Dec 20232,607+1,6931.00
15 Dec 2023914−4,5761.00
30 Nov 20235,490−1,0451.00
15 Nov 20236,535+3,3151.00
31 Oct 20233,220+2,0541.00
13 Oct 20231,166−2,4221.00
29 Sep 20233,588−12,5241.00
15 Sep 202316,112+15,0841.00
31 Aug 20231,028–1.00

Scroll inside the table for earlier settlements, back to 31 Aug 2023.

Questions

Frequently asked questions

What is MSFO's short interest?
38,620 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, down 2,156 from the previous settlement.
Why is there no percentage for MSFO?
Because no defensible share count exists to divide by: exchange-traded product: its share count floats with creation and redemption. An exchange-traded product's share count changes every day as units are created and redeemed, so no filing gives a stable count to divide by. FINRA's shares-short figure is exact; a percentage of it would not be.
What is MSFO's days to cover?
1.00 days for settlement date 15 Sep 2026: FINRA's own short interest ratio, the reported shares short divided by average daily trading volume, published in the same file and shown verbatim. We hold no volume data ourselves.
Is this the short float?
No. This page shows FINRA's share count only. Short float divides that count by the public float, and short interest as we publish it elsewhere divides it by shares outstanding from SEC filings. Neither denominator is available for this line, so neither ratio is shown.
How often does this update?
FINRA member firms report short positions as of the 15th and the last business day of each month, and FINRA publishes the consolidated figures about nine business days later. We ingest each file the day it appears and re-read recent settlements for revisions.

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